Home / 126,205.20-189,401.64-59,665.76

Finding the Fourth Proportional to 126,205.20, 189,401.64 and 59,665.76

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Solution

The fourth proportional to 126,205.20, 189,401.64 and 59,665.76 is: 89,543.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,205.20 : 189,401.64 = 59,665.76 : x
  2. Step 2: Convert to fraction form
    126,205.20/189,401.64 = 59,665.76/x
  3. Step 3: Cross multiply
    126,205.20x = 189,401.64 × 59,665.76
  4. Step 4: Simplify right side
    126,205.20x = 11,300,792,795.85
  5. Step 5: Solve for x
    x = 11,300,792,795.85/126,205.20
  6. Step 6: Final answer
    x = 89,543.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.